The Fusee, cataloged under National Stock Number 6645-00-445-8143, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hamilton Watch Co Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | Fusee |
| FSC / FSG | 6645 — No Item Name Available (FSG 66) |
| Manufacturers | Hamilton Watch Co Inc (CAGE 26992) |
| Parameter | Value |
|---|---|
| NSN | 6645-00-445-8143 |
| Primary Part Number | 42021-3-01 |
| Item Name | Fusee |
| FSC / FSG | 6645 / 66 — No Item Name Available |
| Manufacturer | Hamilton Watch Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 42021-3-01 PRIMARY | Hamilton Watch Co Inc (USA) |
| 42021 PRIMARY | Hamilton Watch Co Inc (USA) |
| 21-2-42021 PRIMARY | Hamilton Watch Co Inc (USA) |
NSN 6645-00-445-8143 is a Fusee, manufactured by Hamilton Watch Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.
NSN 6645-00-445-8143 has 3 cross-referenced part numbers: 42021-3-01 (Hamilton Watch Co Inc), 42021 (Hamilton Watch Co Inc), 21-2-42021 (Hamilton Watch Co Inc).
There are 10 known substitutes for 6645-00-445-8143: 4520-00-308-0584, 4710-00-710-9223, 5999-00-787-6729 and 7 more. Verify interchangeability with system specifications before substitution.